We are a granular bentonite supplier in China. Usually we provide this product together with our geosynthetic clay liner product because the bentonite granular can be used to stick and connect the clay liner sheets.
bentonite in GCL sandwitch
granular bentonite
natural sodium bentonite clay
Bentonite is an absorbent aluminium phyllosilicate clay consisting mostly of montmorillonite. The different types of bentonite are each named after the respective dominant element, such as potassium (K), sodium (Na), calcium (Ca), and aluminium (Al). Our company mainly provide natural sodium bentonite.
Sodium bentonite expands when wet, absorbing as much as several times its dry mass in water. The property of swelling makes sodium bentonite useful as a sealant, since it provides a self-sealing, low permeability barrier. It is used to line the base of landfills, for example.
Our company uses natural sodium bentonite granular as sandwiched, nonwoven/woven geotextile as cap layer and carrier layer to needle punch together in order to produce a composite liner to be applied as a waterproofing barrier.
Excellent swelling property,
Low loss water and colloid property,
Environmental property without toxic and harmfulness.
| Type | Natural sodium bentonite |
| Particle size | 0.2mm~2.0mm |
| Bentonite particle content | ≥80% |
| Swell index | ≥24 ml/2g |
| Fluid Loss | ≤18 ml |
| Methylene blue index | ≥30 g/100g |
| Bentonite durability | ≥20 ml/2g |
The property of swelling on contact with water makes sodium bentonite useful as a sealant, since it provides a self-sealing, low-permeability barrier.
It is used to line the base of landfills to prevent migration of leachate, for quarantining metal pollutants of groundwater, and for the sealing of subsurface disposal systems for spent nuclear fuel. Similar uses include making slurry walls, waterproofing of below-grade walls, and forming other impermeable barriers, e.g., to seal off the annulus of a water well, to plug old wells.
So its application can be expanded to many industries including subway, tunnel, artificial lake, landfill, airport, hydraulic engineering, bridges and roads, building, etc.
Q1: Can you provide this product solely?
A1: Usually we provide bentonite granular together with geosynthetic clay liner products, but if clients need them solely, we can export them with the help of our corporate trade company.
Q2: Whether the bentonite is natural sodium one?
A2: Yes, it is.
Q3: How to store the granular bentonite?
A3: Because of its hydro-expansive characteristic, it is needed to be stored in dry, cool and ventilated place. And it must be avoided the contact of water or heavy moisture.
Shanghai Yingfan Engineering Material Co., Ltd., headquarter in Shanghai and having branches in Chendu city and Xian city, is one of the leading and comprehensive geosynthetics manufacture and installation service provider in China. Our company have ISO9001, ISO14001, OHSAS18001 certificates. We have built a good reputation in our abroad and domestic market. We warmly welcome all of the customers from the other parts of the world to inquiry and contact us.